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Sailboat Specifications

Flying Ant

Fractional Sloop · Centerboard Dinghy

Designed by John Spencer · Built by Dinghy Sports(Aus) · First built 1967

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LOA 10.50 ft  ·  Beam 4.25 ft  ·  Displacement 90.00 lb  ·  Sail Area 73.00 ft²  ·  Fractional Sloop  ·  Centerboard Dinghy
About the Flying Ant Sailboat

Designed by renowned Australian naval architect John Spencer in 1967, this compact centerboard dinghy represents classic small boat design principles with modern construction techniques. The Flying Ant combines traditional wood construction with fiberglass reinforcement, creating a lightweight yet durable platform that tips the scales at just 90 pounds. With its fractional sloop rig and generous sail area of 73 square feet, this dinghy delivers impressive performance for its modest 10.5-foot length. The high sail area-to-displacement ratio of 58.17 indicates excellent light-air performance and spirited sailing characteristics, making it particularly well-suited for protected waters, harbor sailing, and small boat racing. The boat's narrow 4.25-foot beam contributes to its lightweight construction while maintaining adequate stability for single-handed or two-person sailing. Built by Dinghy Sports in Australia, the Flying Ant gained recognition in the antipodean small boat community during the late 1960s and early 1970s. The centerboard configuration allows for easy launching from beaches and shallow water exploration, while the capsize screening formula of 3.79 suggests reasonable stability for experienced small boat sailors. This dinghy appeals to sailors seeking a responsive, traditional-style boat for day sailing and informal racing in sheltered conditions.

Dimensions & Specifications
LOA (Length Overall) 10.50 ft / 3.20 m
Beam 4.25 ft / 1.30 m
Displacement 90.00 lb / 41 kg
Sail Area (Reported) 73.00 ft² / 6.78 m²
Design & Construction
Hull Type Centerboard Dinghy
Rigging Type Fractional Sloop
Construction Wood/FG
Designer John Spencer
Builder Dinghy Sports(AUS)
First Built 1967
Associations Flying Ant Skiff Sailing of Australia
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Frequently Asked Questions

What is the Flying Ant's sail area to displacement ratio?

The Flying Ant has a Sail Area to Displacement ratio (SA/D) of 58.17. Values between 14–18 are typical cruising sailboats; 18–22 is cruiser/racer; over 22 is performance racing.

What is the Flying Ant's comfort ratio?

The Flying Ant has a Ted Brewer Comfort Ratio of 2.14. A ratio over 30 indicates good offshore comfort; over 40 is very comfortable offshore.

Is the Flying Ant safe for offshore sailing?

The Flying Ant has a Capsize Screening Formula value of 3.79. Values under 2.0 are considered acceptable for offshore sailing; under 1.8 is ideal.

What is the hull speed of the Flying Ant?

The theoretical hull speed of the Flying Ant is 4.0 kn knots, calculated from its waterline length.

How much does a Flying Ant weigh?

The Flying Ant has a displacement of 90.00 lb and a length overall (LOA) of 10.50 ft.

Who designed the Flying Ant?

The Flying Ant was designed by John Spencer, first built in 1967.